Being toxic to an insect or human doesn't mean it will have any effect on a virus.
IIRC the reason nicotine is poisonous to humans is because it binds to receptors involved in nerve function, which in turn are required to control muscles.
You are using the wrong algorithm for filled circles. IIRC MS Paint uses an algorithm based on the mathematical formula for a circle, which creates a pointy out pixel which looks a bit out of place.
The amount of CO2 human bodies emits is negligable. Methane from cow farts are a significant source of greenhouse gasses though. There should be fincancial incentives for more environmentally friendly diets. As well as greater taxes for air travel. In england it is cheaper to fly than travel by train.
Do the bags specify how many servings they contain? My guess is that the salad is also expensive because it's about the only ingredient that can't be stored for the next 10k years without going off.
I think the fact that the subjects suffer from Progeria (a syndrome that causes early ageing) is significant. There are other effects of ageing (such as damage to DNA in mitochondria from oxidative stress reducing a cell's ability to generate energy) that may not be displayed early alongside other symptoms of progeria and that this treatment would not do anything to alleviate.
IIRC the reason nicotine is poisonous to humans is because it binds to receptors involved in nerve function, which in turn are required to control muscles.